StrongBox Enclosures

Technical Marketing, Inc. (TMI) represents StrongBox across Washington, Oregon, Idaho, Montana, and Alaska, supporting engineers, contractors, municipalities, and OEMs with durable enclosure solutions for demanding outdoor and industrial environments.

StrongBox manufactures rugged steel enclosures designed to provide secure, weather-resistant protection for electrical systems, controls, and infrastructure. Built for long-term reliability, their enclosures are ideal for applications where durability, security, and environmental protection are critical.

TMI works directly with customers throughout the Pacific Northwest to assist with enclosure selection, configuration, and application requirements, ensuring the right solution for each installation.

Serving Washington, Oregon, Northern Idaho, Montana

Key Applications and Industries

StrongBox enclosures are used in:

  • Parks and recreational facilities

  • Ball fields and sports complexes

  • Utility and electrical infrastructure

  • Industrial facilities and job sites

  • Outdoor power distribution and control systems

  • Municipal and public works projects


Built for Harsh Environments

Control Enclosures

Rugged steel enclosures designed to protect control systems and electrical components in industrial and outdoor environments. Ideal for housing panels, controls, and automation equipment.

Service Pedestals

Heavy-duty service pedestals designed for power distribution in parks, RV sites, and recreational facilities. Built for outdoor durability, security, and long-term performance in public environments.

Backflow Enclosures

Durable backflow enclosures engineered to protect plumbing systems from freezing temperatures and environmental exposure. Designed for municipalities, utilities, and commercial installations.